2001224322 has 24 divisors (see below), whose sum is σ = 4350121776. Its totient is φ = 664900056.

The previous prime is 2001224311. The next prime is 2001224333. The reversal of 2001224322 is 2234221002.

It is an interprime number because it is at equal distance from previous prime (2001224311) and next prime (2001224333).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2001224295 and 2001224304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175548 + ... + 186599.

It is an arithmetic number, because the mean of its divisors is an integer number (181255074).

Almost surely, 2^2001224322 is an apocalyptic number.

2001224322 is an abundant number, since it is smaller than the sum of its proper divisors (2348897454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001224322 is a wasteful number, since it uses less digits than its factorization.

2001224322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362462 (or 362459 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2001224322 is about 44735.0457918621. The cubic root of 2001224322 is about 1260.1780889622.

Adding to 2001224322 its reverse (2234221002), we get a palindrome (4235445324).

The spelling of 2001224322 in words is "two billion, one million, two hundred twenty-four thousand, three hundred twenty-two".